Pump for automobile-tires.



J. H. TEMPLIN. PUMP FOR AUTMOBLE TIRES. APPLICATION ULEB MAY s. w12.

s Y P ma. if W w/ Ndvwmoo J. H. TEMPLIN.

PUD/11) POR AUTOMOBILE TIRES.

APPLICATION FILED MAY 3,1912.

Patented Feb. 17, 1914.

3 SHEETS-BHBET 2.

a fa?,

J. H. TEMPLIN.

PUMP FOR AUTOMOBUJE TRES4 APPLlcA-uun FILED MAY s, 1912.

3 SHEETS-BHEBT 3.

. 0 A iw f j Patented Feb..17, 1914.

AlC K Josaplz/ ji 7km/nlm f JOSEPH H. TEMPLIN, OF PHILADELPHIA,PENNSYLVANIA.

PUMP FOR AUTOMOBILE-TIRES.

Specification of Letters Patent.

Patented Feb. 17 191 4.

Application led May 3` 1912. Serial No. 694,960.

To all yiii/tom 'it muy concern Be it known that I, JOSEPH H. TEMPLIN,of Philadclphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements` inPumps for u-iutomobile-Tires, whereot' the following is a specification,reference being had to the accompanying drawings.

The invention relates more particularly to a pump for intlating anautomobile tire, which pump is operated through connection with one otthe cylinders of a multiple cylinder internal combustion engine.

An object of the invention is to provide a pump of the above characterwherein solely pure atmospheric air may be compressed and utilized forintiating an automobile tire.

A further object of thel invention is to provide an automobile pumpwherein the air taken from the atmosphere may be compressed in anauxiliary cylinder and subsequelly delivered and further compressed inthe automobile tire.

A still further object of the invention is to provide, a pump wherein anauxiliary cylinder located within the main cylinder and is providedAwith coiperatiug devices whereby said auxiliary cylinder is movedrelative to the main cylinder from the compressed gases in the enginecylinder', and said auxiliary cylinder is utilized for drawingatmospheric air into the pump and for compressing and delivering thesame to the automobile tire.

These and other objects will in part be obvious. and will in part behereinafter more Yfully described. 5

ln the drawings Which show by way of illustration one embodiment ot theinvention, Figure I, is a vertical-sectional view through a pump havingmy improvements applied thereto. Fig. II, is a-transverse sectional viewon the line II, II, of Fig. I. Fig. II, is a t' ansverse sectional viewon the line III, III, of Fig. I. Fig. IV, is a transverse sectional viewon the line IV, IV, of Fig. I. Fig. V. 'is a transverse sectional viewon the line V, V, of Fig. I. Fig. VI, a detail partly in perspective andpartly in Section, .showing one of the valves which cooperate with theauxiliary cylinder. Fig. VII, is` a-perspective view of the spring whichassists in holding the circular plate valve in position. Fig. VIII,` isa vertical sectional View of the central portion ot' the pump, showing aslightly modified torni of the invention. Fig. IX, is a section-.il viewon the line IX, 1X, of Fig. VIII.

My improved pump, as herein illustrated, consists broadly of an outermain cylinder which is adapted to be connected with one of the cylindersof a multiple cylinder internal combustion engine." This pump is pret'-erably attached to the cylinder by removing the spark plug, although itmay be otherwise attached. Reciprocating within the main cylinder is anauxiliary cylinder which carries a piston head at each end thereof. Thisauxiliary cylinder is moved relative to the main cylinder by thecompression ot the gases in the cylinder ot the interinil combustionengine, through the movcmcnt ot' the piston of said engine, the enginebeing operated by the remaining cyliinlcrs4 thereof, in the usualmanner. This auxiliary cylinder draws in atmospheric air. which istransferred 'from the upper part ot' the main cylinder to the auxiliarycylinder where it is slightly coinprt-rsscd. The auxiliary cylinderdivided by a piston head carried' by a stationary piston rod, and theair which is compressed in the auxiliary cylinder transferred to andfurther complici-:sed in the automobih` tire, which is connected to thepump and to the auxiliary cylinder through the hollow, stationary pistonrod.

Referring more in detail to the drawings, my pump consists of a maincylinder l, which as herein shown, formed with an inner lower chamber 2,and an inner upper chamber 3. The diameter ot' the lower chamber 2. isslightly' greater than the diameter o'tthe upper chamber 3. Mounted soas to freely reciprocate in the main cylinder, is an auxiliary cylinder4. This auxiliary cylnder 4, is provided with an inner cylindricalchamber The auxiliary cylinder 4, carries a piston head which fitsclosely the inner cylindrial surface of the main cylinder. This pistonhead (3, is located at a pint adjacent the lower end ol.' the auxiliarycylinder. The auxiliary cylinder also carries a second -piston head 7,which is located at the upper end of the auxiliary cylinder, and soconstructed as to fit closely the inner cylindrical wall ot' the upperportion of the main cylinder. The auxiliary cylinder closed at its lowcrend as at 8, and the piston head this preferably formed integral withthe auxiliary cylinder. The

piston head 7, consists of -a ring which is threaded on to the upper endof the auxiliary cylinder as at 9, and said ring carries an inwardlyprojecting flange 10, which is formed with a central opening 11.

Located centrally of the main cylinder is a hollow stationary piston rod12, which carries a piston head 13, at its lower end. This piston head13, fits closely' within the c vlindrical inner surface of the auxiliarycylinder 4. The piston head 6, carried by the auxiliary cylinder isprovided with an annular recess 15, and with a plurality of ports 16,which form a communication between the upper and lower faces of thepiston head (l. These ports 16, are normally closed by a circular platevalve 17, which is held in place by springs 18, surrounding suitableheaded studs and bearing against the plate. At the upper end of theauxiliarY cylinder is a valve 19, which is preferably made of leather,and is provided with an extended collar 20, fitting snugly upon thehollow piston 12, but which slides freely thereon. This valve 'carries aperforated plate 21. The upper end of the cylinder is projectedoutwardly and is threaded to receive the piston head 7, as above noted.The piston head 7` is so constructed that the flange 10, thereof, isplaced above the upper end of the auxiliary cylinder, and thereby apocket is formed for the valve 19. The plate 21, is

of such diameter as to rest on the outer end of the auxiliary cylinder.

As above noted, the flange 10, stops short of the central hollow pistonand provides a space 11. This space is closed by the valve 19, whichsaid valve rests against the flange 10. lVhen however, the valve 19,rests against the upper end of the auxiliary cylinder, connnunicationbetween the chamber in the upper end of the main cylinder and thechamber in the auxiliary cylinder, .may be had through the annular space1l, and the ports in the metal disk 21. The. piston head 13, at thelower end of the hollow piston rod, consists of a metal plate 22, whichis held on the lower end of the piston rod by threaded rings 23, and 21.A leather cup piston head 25, consists of an outer ring which engagesthe inner cylindrical wall of the cylinder and a llange 2G. The inneredge of the flange, 26, as herein shown, is clamped between the ring 23.and the plate 22. Said cup piston head is provided with a plurality ofports 27, (see Fig. Vl.) The rings 23, and 2l, are somewhat smallerdiameter than the inner diameter of the ring of the cup piston, thusforming an annular space 2S.

'hen the flange 26, of the cup piston is tight against the metal disk22, the ports 29, in the metal disk will be closed. lVhen however, saidelastic cup piston is moved away from the metal dish 22, thenconnnunication between the upper and lower parts of the auxiliarvchamber of the auxiliary piston may be had, that is, the chamber 5,above the piston head 13 and the chamber 30 below the piston head, willcommunicate with each other through the ports29, the ports 27, in thecup piston, and the annular space 2S, between the rings 23, and 24, andthe cup piston 25. In order to yieldingly hold the leather cup pistonagainst the inner wall of the auxiliary cylinder, I have provided aspring 31, which is flat in crosssection, and is bent so as to bearyieldingly against the inner wall of the ring of the cup piston. Saidspring is shown in detail in Fig. VII, of the drawings. The upper edgeof the spring is provided with inwardly bent lugs 32, which overlap thering 23, and prevent the spring from becomingl displaced.

The piston rod 12, as above noted, is hollow. The central passage 33,extends the full j length of the piston rod, and is closed at I itsupper end by a threaded nut 31. The ,l passage leads to the chamber 30,at the lower j side of the stationary piston head in the auxiliarycylinder. Said passage 33, is lslightly contracted adjacent its lowerend so as to form shoulders 35, on which nor- Ii mally rests a ballvalve 3G. The threaded nut 31, carries a stem 37, which is smaller thanthe inner diameter of the passage 33, so that a free passage is affordedbetween the inner surface of the hollow piston and the stem 37. Saidstem 37, at its lower end is reduced in diameter, and a coil spring 38,p bears at one end against the shoulder 39, j formed by said reducedportion, and at its ,l other end against the ball 36, and normally holdsthe saine on its seat. The reduced portion of the stem is slightly abovethe ball.

when resting on its seat, and allows a limited movement ot' the ballfrom the seat.

he upper end of the main cylinder is I' closed by a cap 10. The hollowpiston 12, is secured into the cap. Said cap is provided with a passage41, which leads to the hollow piston. A threaded hollow nippleQ, servesas a means for connecting the lead pipe which conveys the air from thepump to the automobile tire. T j side thereof is provided with acylindrical l l recess 43, and an opening 171, which leads to the upperpart of the main cylinder. An internal collar 45, is secured into theouter end ot' the recess 43, and this collar serves as a means forallowing the atmospheric air to pass through the opening or port 1l,into the upper end of the cylinder. The 0pening leading to the outer airis closed by a ball 46, which seats against the collar 45. A spring 17,normally holds the ball on its seat. Said spring is supported by a stud4S, which also serves as a limiting stop for the ball 46.

The lower end of the main cylinder is closed by the head 49, which isthreaded onto the cylinder' and he cap 40, on the opposite i is provided.walr'a rn;

opening which receives a threaded Sleeve "llae lower end ot the threadedeleevc 5l), ia also threaded as at 51, and tliiS threaded part 5l, isadapted to be screwed into an oiliening in the cylinder ot an internalconihustion engine. The threaded portion 5l, is pre {'crahly socontructed as to be screwed into the opening normally receiving theSpark plopso that when it is desired to at.-I tach the punip to anengine. all that, is necessary i5 to remove the spark plug1 and to screwthe pump in the place therefor. This removing ot' the spari: plugwithmit other adjuatn'ients, preventie any chance ol an explosion in thecylinder` to which the pump connected, and said cylinder will servemerely as a compression cylinder for compressing the air or received.into the sante, which compressed air or gar; will be carried through thethreaded sleeve 50, into the main cylinder of the pump, where it may heutilized for actuating the auxiliary cylinder of the pump.

To prevent rainniing of they auxiliary ey indcr aS it reciprocate? inthe main cyliinler, .l have provided the lower end oil: the auxiliary`cylinder `with a cylirulrical part, which 1ortfiects below the pistonhead ll, carried l'fy the auxiliary cylinder. The head alt, ot the inaincylinder, is also provided with a projecting,` part. 52, which is formedwith a cylindrical recess 53, adapted to receive the lower projectingend of the auxiliary cylin der. de; the lower end ot the cylinder passesinto this rccesS or pocket 5?, the air trapped thcrcliy will serve as acushion Vfor the auxih iir linder. The bottoni ot the rece.u l inpi-.,\iiled with ports 5l, which lead to lne space or paeeae'e connectedwith the pas-v ,aige through the cylinder 50. This passage alsoconnected by passages 50, with the niain cyliiider outside of thecentral pro- Iieclion 52. disk' valve 57, secured in the lhottom ot' therecess 53, is adapted to close the porteA Fill. and prevent the pa igeof the air trapped in the pocket, through said ports. Un the upwardmovement of the cylinder, the valve 5T, will allow the air to passthrough the ports /-hand engage the bottoni of the auxiliary cylinder,and'theret'ore, on the up stroke ot the auxiliary cylinder,Substantially the entire area. of the piston head l, and the end of thecylinder are subjected to the air compression in the cylinder of theengine. It will he obvious however, that lfrom certain aspects of theinvention, this valve 57, may he omitted. In order to form a cushion forthe upward stroke of the auxiliary cylinder, which is of special valuewhen the tire is under small compression, I have coi'xstructed thepieton head (l, with an annular :Wiesn l5. which forn'ifi an annularring 59, which is adapted to enter ai: nnlar rcces; 'fr pr het 5i),la-nird in l oli the alain cy liuder. Thiif ring titi,

l the aii` in the annular recess it), and thereby cuhion the aliviar-i'stroke ot the auxiliary cylinder. ln ordeg io allow tree egress of theair as the piston head (l, of the auxiliary cylinder nioves upwardly,the Vwalh:y ol the cylinder are provided with ports GO, which arelocated adjacent the upper end of the enlarged portion ot the cylinder.These ports are of nnllicicnt number to prevent hack pressure. 'lheports arc however, disposed somewhat below the uppermost end oli' thcenlarged part. oi," the cylinder, so that the cuehion aliove referrer1to may he formed for preventing the, 'rainining ot the auxiliarycylinder on its i,it\;ard tn-ilo?.

ln Figs. Vlll, und lx, lY have shown a slightly nodilied .torni nl'conetruction ol cushion for the outer stroke ot' the auxiliary cylinder.The pieton heaaV lf3, carried hy the auxiliary cylinder l, i5 cored, soas to provide a hollow central portion ill. The passages or ports lli,lead troni the hollow center of the piston head to the lower tace of thepiston, and are cle-eed hy the circular )date valve 1T, above :'cl'crrcdto. 'the auxiliary cylinder torincd will! an .luiargeinent (l2, whichlits cloicly th# inner wall ot' the upper cyliiidrical pori' ion il, olthe main cyl inder. liorta or pase: "ic o23, are l'orincd in saidenlargement, and connect the upper portion of thc cylinder with thehollow een tral portion of the pinoli head t. .le thc auxiliary cylinderinore upwardly, the ports ('10, will he closed hy the piston head andthe enlarged part h2. of the auxiliary cylinder will Inove intoengagement with the cylinder, and a certain amount. of air `will betrapped in the pocket (El. This trapping of the air will Serve tocushion the upward movement ot the auxiliary cylinder.

The operation of my device is as follows: Sti-art ing with the pa itspositioned as in Fim l', and let it be. :nipposod thaty the piston 0fthe cylinder of the engine to which the pump ifi attached is on thesuction stroke which will efihanat, the air from the i'nain chamber 2.of the puinp. Thia exhausting of the air from the puinp will cause theauxiliary cylinder to move downward and the lower end of the cylinderwill enter the projecting portion 52, thus (.nehioning' the down strokeof the cylinder. This dmvnward movement of the auxiliary cylinder willcause pure air to he drawn from the atinonphere through the poi-t il,into the chamber Il, ol' the niain cylinder. The ball check val verfill, will open to allow the air to rush in to lill the Space producedon this down movement of the auxiliary cylinder. As the auxiliarycylinder moves downward, the valve '19, will he moved up against theflange 1() closing the e ll, and anv air contained in the inner surfaceol the upper part ot' the niain ferred downwardly through the ports 29,into the chamber 30, beneath the piston head 15%. On the out stroke ofthe piston of the engine, the air and gas in the engine cylinder will becompressed and forced through the passages 55, and 56, and also throughthe ports 54, into the main cylinder and against the lower face of thepiston head 6. The plate valve 1T, will seat lo. This will cause theauxiliary cylinder to move outwardly or upwardly and the air in tbechamber 3, will be Compressed in the chamber 5, above the piston head13. The valve l0, will close and the valve 19, will open to allow theair to be compressed in the auxiliary cylinder. (ln this same out strokeot' the :,iuxiliary cylinder. the air in the chamber 230, beneath thepiston head 13, will be carried past the check valve 36, into the hollowpiston, and through the passage 41, to the tire. lVhen the auxiliarypiston moves downwardly, it will readily be seen that air may pass fromthe ports 60, through the ports 1G, 'in the piston head 6, and throughthe passages 56, to the cylinder of the engine, so that said cylindermay be filled with air.

From the above construction, it will be apparent that on the out strokeof the auxiliary cylinder, air which was drawn into the main cylinderwill be compressed in the aux.- iliary cylinder, and the air which waspreviously compressed in the auxiliary cylinder and transferred belowthe piston head 13, will be further compressed and` delivered to theautomobile tire. l Y

W'hile l have shown the upper part of the main cylinder as of smallerdiameter than the lower part of the main cylinder, it Will be apparentthat the cylinder may be of the same diameter throughout, as the activepiston for compressing the air in the automobile tire is the piston 13,which has a relative movement in the auxiliary cylinder. The piston head7, in the present pump serves to a certainextent, to compress the air inthe chamber .5, but is mainly :for the purpose ot transferring the airfrom the up per side of the stationary piston i3, to the. lower .iridethereof subsefnient to the outward stroke of the. auxiliary cylinderwhich compresses and Forces the air into the tire. ln other words, thetwo main piston heads of my pump are thc piston heads (i, and 13, oneoit which acted upon by the compressed gases in the engine cylinder, andthe other of which acta upon the pure air taken from the atmosplua'e,and forces the same into the tire. These two pistons are not 1n any Wavconnected, but have a. movement rela tive to each other` and by thisrelative movement of the two pistons, together with the auxiliarycylinder, l am able to secure .a more pcricct supplyof compressed pureair for the automobile tire. Furtheryby the 1nand close the ports l l II l termediate piston head 7, carried by the auxiliary cylinder, I amable to compress the air in stages, that is to say, the air drawn intothe chamber 3, is transferred and c0mpressed in the chamber 5, and issubsequently transferred to the chamber 30, Where it is finallycompressed and delivered to the automobile tire.

It is obvious that minor changes in the details of construction andarrangement of parts may be made, without departing from thc spirit ofthe invention as set forth in thc appended claims.

Having thus described my invention, I claim:

1. A device for intlating automobile tires including` in combination amain cylinder, means whereby said main cylinder may be attached to thecylinder 'of an internal combustion engine, an auxiliary cylinderlocated within said main cylinder, a piston head carried by the lowerend of said cylinder and adapted to be impinged by the compressed gasesof the engine cylinder, a hollow stationary piston rod, a piston headcarried thereby and engaging the inner surface of the auxiliarycylinder, a piston head carried by the upper end of the auxiliarycylinder, and valves for controlling the air passing through the pistonheads', whereby pure air may be drawn into the auxiliary cylinder,compressed, and delivered through the hollow piston to the tire.

2. A pump for infiating automobile tires including in combination a maincylinder, a hollow piston rod carried by said main cylinder and locatedcentrally thereof, an auxiliary cylinder adapted to reciprocate in saidmain cylinder, a piston head located adjacent each end of the auxiliarycylinder and coperating with the main cylinder, a piston head carried bythe stationary piston rod and co operating with the auxiliary cylinder,stationary piston head having ports formed therein, and a valve forclosing said ports on the out stroke of the auxiliary cylinder, saidpiston head at the upifier end of the auxiliary cylinder having a portformed theretlnough, and a valve tor et y said port on the (lovfnwmdmovement ai' iliary cylinder, .said main cylinder port at its upper cnclleading pliers, and a rhcol; faire port.

3.' A pump tor intlating automobile tires including in combimilien amain cylinder, a hollow piston rod carried by. said main cyl indcr andlocated centrally thereof, an auxiliary cylinder adapted to reciprocatein said main cylinder, a piston head located adjacent each end of theauxiliary cylinder and coperatiug with the main cylinder, a. piston headcarried by the stationary piston rod and cooperating with the auxiliarycylinder, said stationary piston head having connecting said head to thecylinder f an internal combustion engine, au auxiliary cylinder adaptedtu reciprocaic in said main Oyliruicr, saiil auxiliary Cylinder having acyliiulriral prolicrtiuu at its lower eucl, Said v main cyliiuhr havinga projecting portion provided with a C vliut'lrical recess adapted toraccivc tho lower cylindrical @ncl of the auxiliary cyliuflor. portalconnecting the Cyliiulriral iQCtr-'s with ilw pasaage loading to thecugino v vliiulrfr, and a valve for closing Saul ports ln ilu*projcction 0u the Cylin- (lir is uuwiugA inta AQaul rerass, and ieansc0- 01u-ratingr with l'hu fuixiliar)7 cylinder for riuuprw iug puro airand ilvlivcring the auw to u tiro.

t, AX guuugq t'nr iuflating autonuibile tires, ilu'huliug iumuuhiuat'iun an Outer Cylinder, :i rap Carriiul tu' tho uutir cylinder,a li0l l pistou rml luouutml nu Said Cap, a piaton iwad Carl-imi hysaiil hollow piston rofl, a ttu'ciulvil mit'y tur vluxiug' th(` autormul 0f tim hwlluw pisthu rml, a stunt Carried therel\ \j` a hall('luu'l( valvt` for Saiii pistou rnd, a spring iutvrposml lwtuvtn Said.Qtrm and aaifl hall, Faiil simu living positiiuui'l tu limitl thvium'iuuut if tlu hall, au auxiliar)y Cyliiuh-r mu'iurat in g with thosta'tiuualff pistOn hvail aiul the uiaiu P vliiulvr, :nfl .meansu'hurrnhy tlu` iuowuuuta (if Saiil auxiliary c\liiul0r will iliau iupure air, (aunprcss the siuiu. aiul flf-liwr saiil air to the tire.

lu tistiumu)v ulivi-vof, A[ have hereunto sifluml my nauw, atPhiladelphia, Pennsyl- Vania, thisl tirstv lay of May 1912.

JOSEPH Il. TEMPLN. -A Tituosscm Julius ll. BELL, lil. L. I `ULI,ER1ON.

